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Lener@ Paanfivb. 79,809, and July 14,1868.

IMPROVEMEN T -IN FIRE-PROOF STRUCTURES.

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Beit known that I, HZEKIAH H. BRYANT, of the city of Boston, county of Sulfolk, and State of Massal` c husetts, have invented an ImprovedConstruction of a Steam-Generator for usein safes or other structures of a similar nature; and I do hereby declare the following tobe a full'and correct description of the same, reference being had to the accompanying drawings, making part of this specification, in which* v Figures l and 2 are detached' views of the same, showing the arrangement ofa pipe, marked by the .letter a, for the eduction ofthe steam or vapor that may be generated in said generator.

My invention consists in part ofthe arrangement of the pipes a, either within or without the generator, or in both ways, in such a manner that they will educt the steam that may be generatedtherciri while retaining 'the'steam-generating contents, regardless of theposit'ionin which the vessel ori generator is placed.

of the corners thereof will mark the air-spacet-herein. Y

From these facts it is obvious that a pipe having an 'opening within and without such a vessel, both of said openings placed at one and the same corner thereof, and which said pipe reaches from said corner to each and every of the others, will serve to eduot the steam that maybe generated in that' part of the vessel, and .at the same time preventthe escape of any material portion ofthe steam-generating contents.Y Whatever position the vessel may be placed in, that it will retain the liquid is apparent, from the fact that in'cvery-possible 'position of the vessel some portion of the pipe is above its surface, and, as it ca'nnotrise higher-than its level, it is obvious that none can' esca-peg n i Y l i. Y

By applying, under such an arrangement, one of these pipes to each corner of` the vessel or generator it steam to escape, and wherein none of them will allow any considerable portion of the liquid'to escape. No more can pass out any time than that which is received into that part of the pipes below its surface, and'which have their mouths or openings similarly located. This much -would only Vescape when the position ol the vessel was changed, and as vaccident could not occasion' many such changes, any suchloss would be qiiite immaterial.

These vessels or generators are intended for use in combination .with safes, hcw-ever named orconstructed,

that are intended to be made moreor le'ss firc-proofby the application ofsteam and otherwise. They can be suitably filled with a'liquid, or with a combination thereof with any absorbent substance, as ismore fully set forth in a specication made by me, describing aninvention relating to safes, and which said Vspeccation was forwarded `about the daterof July 24, A. D. 1867, tothe'Cominssioner of Patents, praying thatLettcrs Patent might be granted to me for said invention. A

The mouths of thc pipes without the generator may bc scaled with a fusiblesubstance that will. fuse at the temperature of boiling water, or they can bc left open, as may b e desired, or as the construction ofthe safe may require. Go'verncd by the .same considerations, the generatormay be furnishediwith a. pipeifor supplying the liquid, asprovided by my construetion of a safe, patented July 16, Ai D. A1867. There can be a pipe ofa similar construction .provided to draw the water off from thevesscl, if it should be thought advisable at any time to introducen fresh supply. I

Having fully described my invention, wish it clearly understood that I'do not claim any particular number of pipes; nor the exact arrangement herein shown; nor any peculiar formation of the vessel or generator; but

What I do claim, and desire to secure by Letters Patent, is* I n combination with a safe or other structure of a similar nature, the u'se of one or more vessels or chambers, used as steam or vapor-generators, that are provided wit h a suitable number of pipes, a, arranged substantially as and for the Vpurpose set forth. `4

` H. H. BRYANT.

Witnesses: t

EDMUND HEwrNS, CHAs. L. TURNER. 

